Table S2: Dust emission amount and the iron concentrations in siliceous minerals from dust source deserts.

Desert

Number of samples

Fe (%)

Dust production (%)

Iron influx (Tg*yr-1)

in silicate

Lower limit

Upper limit

Taklimakan

6

0.64-1.67

21

0.54

1.40

Qaidam

4

0.92-1.83

5

0.18

0.37

Badain Jaran

2

1.58-2.24

22

1.01

2.51

Tengger

1

1.37

-

-

-

Mu Us

2

1.12-1.15

4

0.18

0.18

Hobq

1

1.15

-

-

-

Mongolian gobi

3

0.2-1.06

29

0.23

1.23

Total

19

 

 

2.14

5.69

*Dust production percentages are not available for the Tengger and Hobq deserts.